CSV DIF
Free online converter

Convert CSV to DIF

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CSV to DIF converterFREE
Drop a .CSV file here
or pick one - we convert it to .DIF and give you the file to download

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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How to convert CSV to DIF

  1. Add your .CSV file - drop it in the box above or click to browse.
  2. Convert it to .DIF in a few seconds.
  3. Download your new .DIF file.

What to expect

  • DIF carries a single sheet of cell values only - no formatting, formulas, or multiple tabs (a CSV has none of those to begin with, so little is actually lost).
  • It is an older ASCII interchange format; very large sheets or non-ASCII characters can trip up some readers.
  • Whether a value is read as a number or text still depends on the opening program's locale, the same as with CSV.

Frequently asked questions

Does DIF keep all my CSV data?
Yes for the values - DIF stores one sheet of cell values. Because a CSV has no formatting or formulas either, essentially nothing is lost in the conversion.
Why convert CSV to DIF?
DIF is a plain-text spreadsheet interchange format from 1981, useful when an older program can read DIF but not newer formats. It moves a single sheet of rows and columns between applications.
What can open a DIF file?
Microsoft Excel, LibreOffice Calc, and Google Sheets all load a DIF file as a normal grid of rows and columns.
Are there limits to DIF?
DIF holds only one sheet and only cell values - no multiple tabs, formulas, or formatting. As an older ASCII format, very large sheets or non-ASCII characters may not be handled well by every reader.
Learn about the formats: .CSV · .DIF
Programs that convert CSV: Microsoft Excel · PlanMaker · Corel Quattro Pro · Microsoft Excel for Mac · LibreOffice Calc · Apache OpenOffice Calc (OpenOffice.org Calc)